Green Arrow's team of super-spies - including the Question, Manhunter, Lois Lane, and Talia al Ghul - has infiltrated Leviathan - and that officially makes them members of Leviathan! Along the way, they learn that one of their own is actually a secret Leviathan agent who betrayed the new Checkmate from the start! Plus, Superman flies onto the scene to shake things up even further! From the award-winning creative team that brought you last year's Event Leviathan comes the next surprising chapter in DC's most dangerous saga.